# UNC-d_coroner

> As of 2026-05-30, UNC-d_coroner is a Russia (suspected)-nexus threat actor tracked by Threadlinqs Intelligence across 1 threat spanning supply chain. Also known as CityOfSin operator, FileZilla masquerading group.

- **Nation:** Russia (suspected)
- **Tracked threats:** 1
- **Categories:** SUPPLY_CHAIN
- **Also known as:** CityOfSin operator, FileZilla masquerading group
- **As of:** 2026-05-30

## Tracked threats

- [CPUID Supply Chain Compromise — Trojanized CPU-Z 2.19, HWMonitor 1.63, PerfMonitor 2, and powerMAX Installers Distributed via Compromised cpuid.com API](https://intel.threadlinqs.com/threat/TL-2026-0347) — CRITICAL

## Related CVEs

1 CVE referenced by tracked UNC-d_coroner activity.

- [CVE-2023-36025](https://intel.threadlinqs.com/cve/CVE-2023-36025)

## Full data

Infrastructure, IOC values and detection queries (Splunk SPL / Microsoft KQL / Sigma) unlock per threat with TL Creds (https://threadlinqs.com/tl-creds); the Threadlinqs MCP server (Purple) serves them to AI agents: https://intel.threadlinqs.com/mcp

Canonical: https://intel.threadlinqs.com/actor/UNC-d_coroner